安徽省电网接地材料<strong>Q235</strong>钢的土壤腐蚀特性及规律性研究

doi:10.11902/1005.4537.2023.033

中国腐蚀与防护学报

2024, Vol. 44

Issue (1): 130-140 CSTR: 32134.14.1005.4537.2023.033 DOI: 10.11902/1005.4537.2023.033

研究报告

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安徽省电网接地材料Q235钢的土壤腐蚀特性及规律性研究

卞亚飞¹, 汤文明¹(

), 张洁², 毛锐锐¹, 缪春辉², 陈国宏²

^1.合肥工业大学材料科学与工程学院合肥 230009
^2.国网安徽省电力有限公司电力科学研究院合肥 230601

Soil Corrosion Characteristics of Q235 Steel Grounding Material Used in Power Grid in Anhui Province

BIAN Yafei¹, TANG Wenming¹(

), ZHANG Jie², MAO Ruirui¹, MIAO Chunhui², CHEN Guohong²

^1.School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
^2.Electric Power Research Institute, Anhui Electric Power Co. Ltd., State Grid, Hefei 230601, China

引用本文:

卞亚飞, 汤文明, 张洁, 毛锐锐, 缪春辉, 陈国宏. 安徽省电网接地材料Q235钢的土壤腐蚀特性及规律性研究[J]. 中国腐蚀与防护学报, 2024, 44(1): 130-140.
Yafei BIAN, Wenming TANG, Jie ZHANG, Ruirui MAO, Chunhui MIAO, Guohong CHEN. Soil Corrosion Characteristics of Q235 Steel Grounding Material Used in Power Grid in Anhui Province[J]. Journal of Chinese Society for Corrosion and protection, 2024, 44(1): 130-140.

全文: PDF(8259 KB) HTML

摘要:

针对安徽省内代表性变电站站点土壤自然环境埋藏1 a期的Q235钢试样，分析试样表面腐蚀层的形貌及组成，探讨其土壤腐蚀机理；采用失重法获取不同站点Q235钢试样1 a期土壤腐蚀速率；最后，采用Spearman相关性分析方法，开展主要土壤理化性质对该试样1 a期土壤腐蚀影响规律研究。结果表明，Q235钢试样土壤腐蚀产物主要为Fe₃O₄、Fe₂O₃、γ-FeOOH和α-FeOOH，但不同站点腐蚀产物的相对量存在差异。部分站点土壤中含有较高的S^2-，形成FeS腐蚀产物，说明土壤微生物生理活动也影响Q235钢的腐蚀。安徽省内代表性站点Q235钢试样的平均土壤腐蚀速率为0.053 mm/a，大多数处于“中”腐蚀等级，腐蚀速率较高的站点主要集中于沿江地区与工业污染区。基于Spearman相关性分析，Q235试样1 a期土壤腐蚀速率与安徽省土壤质地及土壤理化性质指标相关性大小的排序为：pH值>土壤质地>土壤电阻>含盐量>含水量>氧化-还原电位>Cl^-浓度。

关键词 ：电网, 接地材料, 土壤腐蚀, 腐蚀特性, 相关性分析

Abstract：

Q235 steel samples were buried for one year in soils of test sites in 100 substations, which distributed at different areas in Anhui province presenting various typical soils of peculiar characteristics and meteorological conditions. Afterwards, the corrosion rates and corrosion products of the test samples were assessed via mass loss measurement, SEM, EDS and XRD. The results showed the rust scales formed on the samples were composed mainly of Fe₃O₄, Fe₂O₃, γ-FeOOH and α-FeOOH, but their relative amount varied by different soil test sites. The S^2- content in the soils of some soil test sites is high enough to generate FeS as the corrosion product of the samples. It indicates that the physiological activities of microorganisms have an effect on the soil corrosion behavior of the Q235 steel. In general, according to the test results from several typical soil test sites of Anhui province, Q235 steel samples present an average soil corrosion rate of 0.053 mm/a, and their corrosion grades are mostly “moderate”. The soil test sites where the samples have a high corrosion rate are mainly located in the areas along the Changjiang River and/or the industrial pollution areas. In terms of the Spearman correlation analysis, the correlation degree sequence of the index of soil texture and soil physicochemical properties affecting the one year soil corrosion behavior of the Q235 steel is: pH value > soil texture > soil resistance > salt content > water content > redox potential > Cl^- concentration.

Key words： power grid grounding material soil corrosion corrosion characteristic correlation analysis

收稿日期: 2023-02-15 32134.14.1005.4537.2023.033

ZTFLH:

TG174

基金资助:国网安徽省电力有限公司科技项目(B11205210011)

通讯作者: 汤文明，E-mail: wmtang69@126.com，研究方向为材料失效与可靠性评估

Corresponding author: TANG Wenming, E-mail: wmtang69@126.com

作者简介: 卞亚飞，男，1998年生，硕士生

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Serial number	Index	Method	Site
1	Soil texture	Dry/wet test method	Field
2	Soil resistance	Three pole method
3	Redox potential	Potentiometric method
4	S^2-	Test strip method
5	Cl^-、SO $4 2 -$	Ion chromatography	Laboratory
6	Water content	Gravimetric method
7	pH	Potentiometric method
8	Salt content	Gravimetric method

表1 土壤测试指标、方法及场所

表2 5个代表性站点的土壤腐蚀速率及其特征环境

表3 5个代表性站点的土壤理化性质指标

图1 5个代表性站点Q235钢试样1 a期土壤腐蚀产物的XRD图谱

图2 代表性站点1 a期土壤腐蚀Q235钢试样表面形貌

图3 T28站点1 a期土壤腐蚀Q235钢试样表面形貌

图4 1 a期土壤腐蚀Q235钢试样表面腐蚀层形貌及微区EDS能谱

表4 安徽省6种质地土壤的理化性质指标

图5 6种质地土壤的理化性质指标及Q235钢试样1 a期土壤腐蚀速率的变化趋势

图6 1 a期土壤腐蚀Q235钢试样酸洗后的表面形貌

表5 按pH值划分的我国土壤酸碱性等级

图7 安徽省58个站点土壤pH值与Q235钢试样1 a期土壤腐蚀速率关系的散点图及线性拟合

表6 安徽省58个站点Q235钢试样1 a期土壤腐蚀速率与土壤理化性质的Spearman相关系数

1	Xu H, Wen X S, Huang L. Optimization design of grounding grid of large substation [J]. High Voltage Eng., 2005, 31(12): 63
1	徐华, 文习山, 黄玲. 大型变电站接地网的优化设计 [J]. 高电压技术, 2005, 31(12): 63
2	Gao Y B, Du X G, Wang Q W, et al. Corrosion behavior of copper in a simulated grounding condition in electric power grid [J]. J. Chin. Soc. Corros. Prot., 2023, 43: 435
2	高义斌, 杜晓刚, 王启伟等. 铜在电网接地工况下的腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2023, 43: 435 doi: 10.11902/1005.4537.2022.098
3	Ke W. China Corrosion Investigation Report [M]. Beijing: Chemical Industry Press, 2003
3	柯伟. 中国腐蚀调查报告 [M]. 北京: 化学工业出版社, 2003
4	Yu J F, Chen X H, Li S F, et al. Study on corrosion behavior of Q235 steel in soil of Hubei substations [J]. Total Corros. Control, 2011, 25(10): 39
4	余建飞, 陈心河, 李善风等. Q235钢在湖北变电站土壤中的腐蚀行为研究 [J]. 全面腐蚀控制, 2011, 25(10): 39
5	Shao H P. Study on soil corrosion factors of substation grounding network [J]. Electr. Power Equip. Manag., 2020, (1): 113
5	邵洪平. 变电站接地网的土壤腐蚀因素研究 [J]. 电力设备管理, 2020, (1): 113
6	Gao Z Y, Jiang B, Fan Z B, et al. Corrosion behavior of typical grounding materials in artificial alkaline soil solution [J]. J. Chin. Soc. Corros. Prot., 2023, 43: 191
6	高智悦, 姜波, 樊志彬等. 典型接地材料在碱性土壤模拟液中的腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2023, 43: 191 doi: 10.11902/1005.4537.2022.061
7	Yu L B, Yan M C, Wang B B, et al. Microbial corrosion of Q235 steel in acidic red soil environment [J]. J. Chin. Soc. Corros. Prot., 2018, 38: 10
7	于利宝, 闫茂成, 王彬彬等. 酸性土壤环境中Q235钢的微生物腐蚀行为 [J]. 中国腐蚀与防护学报, 2018, 38: 10 doi: 10.11902/1005.4537.2017.009
8	Wang X H, Yang G Y, Huang H, et al. AC stray current corrosion law of buried steel pipeline [J]. J. Chin. Soc. Corros. Prot., 2013, 33: 293
8	王新华, 杨国勇, 黄海等. 埋地钢质管道交流杂散电流腐蚀规律研究 [J]. 中国腐蚀与防护学报, 2013, 33: 293
9	Lim K S, Yahaya N, Md Noor N, et al. Effects of soil properties on the corrosion progress of X70-carbon steel in tropical region [J]. Ships Offshore Struct., 2017, 12(7): 991
10	Suganya S, Jeyalakshmi R. Corrosion of mild steel buried underground for 3 years in different soils of varying textures [J]. J. Mater. Eng. Perform., 2019, 28: 863 doi: 10.1007/s11665-019-3855-7
11	Wang G Y. Study on correlationship between the halophytic vegetation and soil salinity [D]. Huhhot: Inner Mongolia Agricultural University, 2013
11	王广元. 土默川平原盐生植物与土壤盐分空间分布相关性研究 [D]. 呼和浩特: 内蒙古农业大学, 2013
12	Wang Y Y, Bai H K, Wang S Q, et al. Power users’ behavior portrait based on information gain and Spearman correlation coefficient [J]. Electr. Power Eng. Technol., 2022, 41(4): 220
12	王圆圆, 白宏坤, 王世谦等. 基于信息增益与Spearman相关系数的电力用户行为画像 [J]. 电力工程技术, 2022, 41(4): 220
13	Liu M, Dong W B, Zuo X H. Clustering analysis on the development of industrial enterprises in Anhui province [J]. J. Shanxi Norm. Univ. (Nat. Sci. Ed.), 2017, 31(4): 96
13	刘明, 董文兵, 左晓慧. 安徽省各市工业企业发展情况的聚类分析 [J]. 山西师范大学学报(自然科学版), 2017, 31(4): 96
14	Chen Z Y. Evaluation of industrial eco-efficiency of Anhui city based on DEA method [J]. Commer. Times, 2012, (11): 139
14	陈遵一. 基于DEA方法的安徽城市工业生态效率评价 [J]. 商业时代, 2012, (11): 139
15	Perdomo J J, Chabica M E, Song I. Chemical and electrochemical conditions on steel under disbonded coatings: the effect of previously corroded surfaces and wet and dry cycles [J]. Corros. Sci., 2001, 43: 515 doi: 10.1016/S0010-938X(00)00103-7
16	Nie X H, Li Y L, Li J K, et al. Morphology, products and corrosion mechanism analysis of Q235 carbon steel in sea-shore salty soil [J]. J. Mater. Eng., 2010, (8): 24
16	聂向晖, 李云龙, 李记科等. Q235碳钢在滨海盐土中的腐蚀形貌、产物及机理分析 [J]. 材料工程, 2010, (8): 24
17	Zhang S Q, Yin Y D, Li H X, et al. Study on soil corrosiveness in Liaoning [J]. Total Corros. Control, 1996, 10(3): 15
17	张淑泉, 银耀德, 李洪锡等. 辽宁土壤腐蚀性研究 [J]. 全面腐蚀控制, 1996, 10(3): 15
18	Huang T, Chen X P, Wang X D, et al. Effect of pH value on corrosion behavior of Q235 steel in an artificial soil [J]. J. Chin. Soc. Corros. Prot., 2016, 36: 31
18	黄涛, 陈小平, 王向东等. pH值对Q235钢在模拟土壤中腐蚀行为的影响 [J]. 中国腐蚀与防护学报, 2016, 36: 31
19	De La Fuente D, Díaz I, Simancas J, et al. Long-term atmospheric corrosion of mild steel [J]. Corros. Sci., 2011, 53: 604 doi: 10.1016/j.corsci.2010.10.007
20	Domingo C, Rodrı́guez-Clemente R, Blesa M. Morphological properties of α-FeOOH, γ-FeOOH and Fe₃O₄ obtained by oxidation of aqueous Fe(II) solutions [J]. J. Colloid. Interf. Sci., 1994, 165: 244 doi: 10.1006/jcis.1994.1225
21	Li H, Liu Y H, Zhao L H, et al. Corrosion behavior of 300M ultra high strength steel in simulated marine environment [J]. J. Chin. Soc. Corros. Prot., 2023, 43: 87
21	李晗, 刘元海, 赵连红等. 300MPa超高强度钢在模拟海洋环境中的腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2023, 43: 87
22	Chen X, Li S B, Zheng Z S, et al. Microbial corrosion behavior of X70 pipeline steel in an artificial solution for simulation of soil corrosivity at Daqing area [J]. J. Chin. Soc. Corros. Prot., 2020, 40: 175
22	陈旭, 李帅兵, 郑忠硕等. X70管线钢在大庆土壤环境中微生物腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2020, 40: 175
23	Feng D C. Study of corrosion behavior of Q235 and X70 steels in Baotou soils [D]. Baotou: Inner Mongolia University of Science & Technology, 2008
23	冯佃臣. Q235钢和X70管线钢在包头土壤中的腐蚀规律研究 [D]. 包头: 内蒙古科技大学, 2008
24	He J X, Qin X Z, Yi P, et al. Corrosion exposure study on Q235 steel in marine atmospheric [J]. Suf. Technol., 2006, 35(4): 21
24	何建新, 秦晓洲, 易平等. Q235钢海洋大气腐蚀暴露试验研究 [J]. 表面技术, 2006, 35(4): 21
25	Xv L, Zhou X L, Zheng P H, et al. Research of corrosion behavior of Q235 steel in Wuhan soil [J]. Mater. Prot., 2022, 55(2): 74
25	徐立, 周学杰, 郑鹏华等. Q235钢在武汉土壤中的腐蚀行为研究 [J]. 材料保护, 2022, 55(2): 74
26	Ding C, Zhang J L, Yu Y C, et al. Corrosion kinetics of A572Gr.65 steel in different simulated soil solutions [J]. J. Chin. Soc. Corros. Prot., 2022, 42: 149
26	丁聪, 张金玲, 于彦冲等. A572Gr.65钢在不同土壤模拟液中的腐蚀动力学 [J]. 中国腐蚀与防护学报, 2022, 42: 149
27	Li J, Su H, Chai F, et al. Effect of pH values on the corrosion behavior of Q235 steel in simulated acidic soils [J]. Chin. J. Eng., 2015, 37: 473
27	李健, 苏航, 柴锋等. pH值对Q235钢在模拟酸性土壤中腐蚀行为的影响 [J]. 工程科学学报, 2015, 37: 473
28	Cao J F. Effects of temperature and water content on soil corrosion behavior of carbon steel at different exposure time [D]. Wuhan: Huazhong University of Science and Technology, 2007
28	曹君飞. 温度湿度对在不同腐蚀阶段碳钢土壤腐蚀行为影响的研究 [D]. 武汉: 华中科技大学, 2007
29	Dong C F, Li X G, Wu J W, et al. Review in experimentation and data processing of soil corrosion [J]. Corros. Sci. Prot. Technol., 2003, 15: 154
29	董超芳, 李晓刚, 武俊伟等. 土壤腐蚀的实验研究与数据处理 [J]. 腐蚀科学与防护技术, 2003, 15: 154
30	Chen Y. Research of the corrosion law of the effect of chloride ions on the water supply pipelines in the soil [D]. Tianjin: Tianjin University, 2016
30	陈瑛. 氯离子对供水管道土壤腐蚀影响机理研究 [D]. 天津: 天津大学, 2016
31	Gao Y. Study on chloride ion corrosion behaviors of long-distance pipeline [D]. Xi'an: Xi'an Shiyou University, 2013
31	高英. 长输管线氯离子腐蚀行为研究 [D]. 西安: 西安石油大学, 2013
32	Huang T. Study on corrosion behavior of substation grounding network materials in simulated soil [D]. Kunming: Kunming University of Science and Technology, 2014
32	黄涛. 变电站接地网材料在模拟土壤中的腐蚀行为研究 [D]. 昆明: 昆明理工大学, 2014
33	Guo Z Y. Study on corrosive mechanism and zoning evaluation of steel under soil environment in Shanxi province [D]. Taiyuan: Taiyuan University of Technology, 2020
33	郭志远. 山西省土壤环境对钢的腐蚀性分区评价及其机理研究 [D]. 太原: 太原理工大学, 2020
34	Nakajima Y, Moriya T. On the trial utilization of an oxygen concentration cell in an open-coil decarburization furnace [J]. Soild state Ion., 1981, 3/4: 605
35	Dong L B, Yu H, Feng B H. Soil resistivity survey in Pudong area [J]. Shanghai Gas, 1994, (5): 44
35	东留宝, 于宏, 冯宝鹤. 浦东地区土壤电阻率调查 [J]. 上海煤气, 1994, (5): 44
36	Song G L, Cao C N, Lin H C, et al. A review of soil corrosion evaluation methods [J]. Corros. Sci. Prot. Technol., 1993, 5: 268
36	宋光铃, 曹楚南, 林海潮等. 土壤腐蚀性评价方法综述 [J]. 腐蚀科学与防护技术, 1993, 5: 268
37	Chen S X. Research on corrosion of grounding grid materials in typical soil in China [D]. Beijing: China Academy of Machinery Science and Technology, 2016
37	陈散兴. 接地网材料在我国典型土壤环境下的腐蚀研究 [D]. 北京: 机械科学研究总院, 2016
38	Hao H Y. Experimental study on contaminated soil resistivity and the corrosive evaluation for Q235 steel [D]. Taiyuan: Taiyuan University of Technology, 2015
38	郝海艳. 污染土电阻率与Q235钢的腐蚀性评价试验研究 [D]. 太原: 太原理工大学, 2015
39	Murray J N, Moran P J. Influence of moisture on corrosion of pipeline steel in soils using in situ impedance spectroscopy [J]. Corrosion, 1989, 45: 34 doi: 10.5006/1.3577885
40	Ismail A I M, El-Shamy A M. Engineering behaviour of soil materials on the corrosion of mild steel [J]. Appl. Clay Sci., 2009, 42: 356

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